Big Fork Creek is a stream in eastern Polk County, Arkansas. It is a tributary of the Ouachita River. [1] The stream headwaters arise at 34°26′57.39″N94°01′31.72″W / 34.4492750°N 94.0254778°W on the north slope of Missouri Mountains ridge in the Ouachita National Forest. [2] The stream flows east then turns north and crosses under Arkansas Route 8 near Abernathy Springs. It flows generally north passing Big Fork and Opal to its confluence with the Ouachita River one mile south of the community of Cherry Hill. [2]